1. The mean of the exponential distribution is. . . 1 1 a. え b. C.え d.え? 2. The variance of the exponential distribution is.. 1 a. 入 b. C.え d.え? 3. A conversation follows an exponential distribution, f(x) = le ー入r a) Find the probability that the conversation will be more than 5 minutes. with a mean time of 3 minutes. 3. es a. 3 b. els d. 3

Q: Q4/4:The following data represent the number of damaged pieces of spare parts for the production of…

A:

Q: Empirical research on stock market data for two consecutive trading days indicates that 40% of the…

A: a) Consider that π is population proportion of 600 stocks that went up yesterday that will go up…

Q: 28) Suppose the scores on an exam have a mean of 75 with a standard deviation of 8. If one student…

A: Given that.   X~N( μ , ?^2 )   Z-score =( x - μ )/?   NOTE:- According to bartleby guidelines expert…

Q: Calculate the first four moments of the following data about e mean and have find B, B, & 2: 2 4 5 7

A: Central Moments :                Central moments of order r is denoted by µr and given by…

Q: Given a data set is normally distributed with a mean of deviation of 2 (a-2) and is normally…

A:

Q: 1. The IQs of individuals enrolled in a special-needs school are approximately normally distributed…

A:

Q: 14. A sleep time of 15.9 hours per day for a newborn baby is at the 10th percentile of the…

A: We have given that  Standard deviation = 0.5 P( Z < zp ) = 10% = 0.10

Q: If an entire population with µ = 60 and σ = 8 is transformed into z-scores, then the distribution of…

A: Solution If X is a normally distributed random variable and X ~ N(μ, σ), then the z-score is:…

Q: Suppose X has an exponential distribution with a mean 11. Determine the following. Round the answers…

A:

Q: Suppose X has an exponential distribution with a mean 11. Determine the following. Round the answers…

A:

Q: The percent of persons (ages five and older) in each state who speak a language at home other than…

A: Given that, X= he percent of persons (ages five and older) in each state who speak a language at…

Q: 1.The heights of children in a second grade section are normally distributed with mean 52 inches and…

A: Solution: 1. Let X be the height of children in a second grade section. From the given information,…

Q: 9. The weekly gains (in $) for a sample of four stocks are displayed below. (A negative gain means…

A: We have the data given to be 0.88, -0.75, 1.44, and 0.43 The mean for the data is computed as,…

Q: Q.2 Following table represents a probability distribution. -5 0.5 6 9. P(X = x) = p,(x) 0.25 0.25…

A: Formulae : i)  Mean (μ)= ∑x*Px (x) ii) Variance (σ2) = ∑( x - μ )2*Px (x) iii) Cumulative…

Q: Given a data set is normally distributed with a mean of 7 (N-7) and a standard deviation of 2(a-2)…

A: Let X be a random variable such that X~N7,4 We know, X-μσ~N0,1

Q: D=19 The weight, in kilograms, of cereal ina box can be modelled by a normal distribution with Mean…

A:

Q: 1. The mean of the exponential distribution is. . . 1 a. b. C.え d.え? 2. The variance of the…

A:

Q: Q.2 Following table represents a probability distribution. -5 9. P(X = x) = P,(x) 0.5 0.25 0.25 (1)…

A: The probability distribution is, X -5 6 9 P(X=x) 0.5 0.25 0.25

Q: If n = 20 andp = 0.90, then the standard deviation of the binomial distribution is a. 1.34 b. 2.34…

A:

Q: The variance of a binomial distribution for which n = 100 and p = .20 is: 100 80 20 16

A: Variance=npq

Q: Suppose a population is known to be normally distributed with a mean, μ, equal to 116 and a standard…

A: Given that, Suppose a population is known to be normally distributed with a mean, μ, equal to 116…

Q: f ?X is Normally distributed with a mean of 3 and a variance of 4, find ?(|?−3|>1.3)to 2 decimal…

A: we have given that  mu=3 .sigma^2=4  X~N(mu=3 , sigma^2=4) X is a normally distributed

Q: 21. The salaries of employees in a large company are normally distributed with a mean of S60,000 and…

A: We have given that a salaries of employees in a large company are normally distributed with mean…

Q: Suppose a population is known to be normally distributed with a mean, μ, equal to 116 and a standard…

A: Given X is normal Distributed with mean µ = 116.0 and standard deviation σ = 14.0 now will using…

Q: Empirical research on stock market data for two consecutive trading days indicates that 60% of the…

A: Given:

Q: A catalyst researcher states that the diameters, in microns, of the pores in a new product she has…

A: Hey there! Thank you for posting the question. Since your question has more than 3 parts, we are…

Q: What is the formula for the variance? o S? =E (x - X)? / n o S? = E (X - x)? /n o S2 = E (x - X) / n…

A: Variance is one of the measures of dispersion.

Q: Down-To-Earth sells houses. The following table represents the selling price of a house (y) in…

A: Given,x:5 ,15 , 19 , 7y:500 , 900 , 1500 , 2000

Q: IV. The table below shows the number of students who visit the library per day. X 30 45 52 55 60 16.…

A:

Q: 1 (a) The Monthly expenditure of family is normally distributed with mean riyals 100 and variance…

A: 1)Given data,μ=100σ2=64σ=8

Q: E 14 40. The life-time in hours of a certain electrical equipment has the normal distribution ith…

A:

Q: For numbers 6-10, refer to the following problem. The time it takes for Grade 11 students in a…

A: μ = 15σ = 4Normal distribution

Q: Suppose that the mean score of 2000 students in a certain exam is 65 points with a standard…

A: We have given that  The mean score of 2000 students in a certain exam is 65 points with a standard…

Q: Q4/4:The following data represent the number of damaged pieces of spare parts for the production of…

A:

Q: Example 25. The quarterly profits (in lakhs of Rs.) of three companies are Calculate their standard…

A:

Q: In 2015 the average selling price for a single family home in Hoschton was $250,000. A local real…

A: Given,   In 2015 the average selling price for a single family home in Hoschton was $250,000.   The…

Q: 1.The test scores of Biostatistics examination follows a normal distribution with a mean of 60 and a…

A:

Q: A normal distribution has a mean of µ = 30 with σ = 5. If a vertical line is drawn through the…

A: Given that vertical line is at X=39, draw the normal curve (Bell-shaped curve) and shade the area to…

Q: (D) If a variable has a Binomial distribution, then the number of possible outcomes is always two.…

A: We have given that two statement one is related to Binomial distribution and other is related to…

Q: 4. Suppose that X has an exponential distribution with a mean of 8. Determine the following: (a) P(X…

A: Given  X~exp(1/8)

Q: Following is the probability distribution for age of a student at a certain public high school. 13…

A: E(X)=∑iXiP(X)E(X)=13×0.09+14×0.23+15×0.25+16×0.26+17×0.14+18×0.03E(X)=1.17+3.22+3.75+4.16+2.38+0.54E…

Q: The time spent​ (in days) waiting for a heart transplant in two states for patients with type A+…

A: Standard normal distribution:The standard normal distribution is a special case of normal…

Q: Q.2 Following table represents a probability distribution. -5 6 9 P(X = x) = P;(x) 0.25 0.5 0.25 @…

A: Given

Q: The owner of a fish market has an assistant who has determined that the weights of catfish are…

A: Probability of observed value as much as extreme is p value.

Q: a) The failure time (T) of an electronic circuit board follows an exponential distribution with…

A:

Q: 12. The following table lists the probability distribution for cash prizes in a lottery conducted at…

A: Given Information: The table lists the probability distribution for cash prizes in a lottery…

Q: Suppose X follows an exponential distribution. It is known that P(X > 4) = e−2.5. What is the…

A: Exponential distribution: A continuous random variable X is said to follow exponential distribution…

Q: he following table gives the joint probability distribution of the speed of a car (C) and the…

A: Given The conditional expectation of the speed of the car, given no accidents take place, E(CIA=0),…

Q: 3. Suppose that X has an exponential distribution with a mean of 10. Determine the following: (a)…

A:

Q: 5. The following table includes the information about a monthly time series. Month Time Series…

A: Error is calculated by subtracting the actual and predicted value. In the exponential smoothing…